I would like to gather your thoughts on coolant. What do all you guys use and recommend? I recall about 6 months or so ago on Today Tonight or A Curent Affair, they tested several brands and some were real shockers. If I remember correctly, the Holden coolant came out in first. Did anyone watch this?

Ive had no trouble with Nulon, but its the only one ive used so I cant say if its any better or worse than any others. I think coolants are one of things you dont find out they are crap until 5-10 years down the track unfortuanatly.

One thing ill mention is that make sure you have the correct coolant:water ratio. Not enough coolant is acidic, too much is caustic. You can test it with either an Electronic pH meter or some Litmus paper (not as accurate) You'll want a reading of between pH 7.5 and pH 9.5

Oh and whatever you do, dont mix coolants!!! even from the same brand, as it will turn the coolant into sludge, which will clog absolutely everything. Whis will cause the engine to overheat causing the sludge to harden and go rock hard....

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